Submission #847098

#	Time	Username	Problem	Language	Result	Execution time	Memory
847098		GrandTiger1729	Nice sequence (IZhO18_sequence)	C++17	15 / 100	6 ms	1116 KiB

sequence

#include <bits/stdc++.h>
using namespace std;

int main()
{
    cin.tie(0)->sync_with_stdio(0);
    int t; cin >> t;
    while (t--)
    {
        int n, m; cin >> n >> m;
        if (n == m)
        {
            cout << n - 1 << '\n';
            for (int i = 0; i < n - 1; i++)
                cout << 1 << " \n"[i == n - 2];
            continue;
        }
        bool flag = 0;
        if (n < m)
        {
            swap(n, m);
            flag = 1;
        }
        vector<int> ans;
        if (n % m == 0)
        {
            ans = vector<int>(n - 1, 1);
            if (flag)
            {
                for (int &i : ans)
                    i = -i;
            }
            cout << ans.size() << '\n';
            for (int i = 0; i < ans.size(); i++)
                cout << ans[i] << " \n"[i + 1 == ans.size()];
            continue;
        }
        if (m == 2)
        {
            ans = vector<int>(n, -1e8);
            for (int i = 1; i < n; i += 2)
                ans[i] = 1e8 + 1;
            if (flag)
            {
                for (int &i : ans)
                    i = -i;
            }
            cout << ans.size() << '\n';
            for (int i = 0; i < ans.size(); i++)
                cout << ans[i] << " \n"[i + 1 == ans.size()];
            continue;
        }
        if (n - m <= 2)
        {
            if (n - m == 1)
            {
                ans = vector<int>(2 * m - 1, -2);
                ans[m - 1] = 2 * m - 1;
            }
            else if (m % 2 == 1)
            {
                ans = vector<int>(2 * m, 1e8);
                for (int i = 1; i < m; i++)
                    ans[i] = ans[i + m] = -2e8 + 1;
            }
            else
            {
                ans = vector<int>(2 * m - 1, -2);
                ans[m - 1] = 2 * m - 1;
            }
            if (flag)
            {
                for (int &i : ans)
                    i = -i;
            }
            cout << ans.size() << '\n';
            for (int i = 0; i < ans.size(); i++)
                cout << ans[i] << " \n"[i + 1 == ans.size()];
            continue;
        }
        if (flag)
        {
            for (int &i : ans)
                i = -i;
        }
    }
    return 0;
}

Compilation message (stderr)

sequence.cpp: In function 'int main()':
sequence.cpp:34:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   34 |             for (int i = 0; i < ans.size(); i++)
      |                             ~~^~~~~~~~~~~~
sequence.cpp:35:47: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   35 |                 cout << ans[i] << " \n"[i + 1 == ans.size()];
      |                                         ~~~~~~^~~~~~~~~~~~~
sequence.cpp:49:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   49 |             for (int i = 0; i < ans.size(); i++)
      |                             ~~^~~~~~~~~~~~
sequence.cpp:50:47: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   50 |                 cout << ans[i] << " \n"[i + 1 == ans.size()];
      |                                         ~~~~~~^~~~~~~~~~~~~
sequence.cpp:77:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   77 |             for (int i = 0; i < ans.size(); i++)
      |                             ~~^~~~~~~~~~~~
sequence.cpp:78:47: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   78 |                 cout << ans[i] << " \n"[i + 1 == ans.size()];
      |                                         ~~~~~~^~~~~~~~~~~~~

• Subtask 1: 6 / 6
• Subtask 2: 9 / 9
• Subtask 3: 0 / 14
• Subtask 4: 0 / 15
• Subtask 5: 0 / 14
• Subtask 6: 0 / 18
• Subtask 7: 0 / 24